com.vaadin.flow.server.startup

Class ServletVerifier

java.lang.Object

com.vaadin.flow.server.startup.ServletVerifier

All Implemented Interfaces:

ClassLoaderAwareServletContainerInitializer, VaadinContextStartupInitializer, VaadinServletContextStartupInitializer, javax.servlet.ServletContainerInitializer

public class ServletVerifier
extends Object
implements VaadinServletContextStartupInitializer

Verify the servlet version on container initialization.

In cases of non compatible servlet version application deployment will fail.

For internal use only. May be renamed or removed in a future release.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
ServletVerifier()

Method Summary

Modifier and Type	Method and Description
void	initialize(Set<Class<?>> classSet, VaadinContext context) Applies this initializer to the given context
static void	verifyServletVersion() Verify that the used servlet version is not too old.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.server.startup.VaadinServletContextStartupInitializer

process

Methods inherited from interface com.vaadin.flow.server.startup.ClassLoaderAwareServletContainerInitializer

onStartup, requiresLookup

Constructor Detail

ServletVerifier

public ServletVerifier()

Method Detail

initialize

public void initialize(Set<Class<?>> classSet,
                       VaadinContext context)
                throws VaadinInitializerException

Description copied from interface: VaadinContextStartupInitializer

Applies this initializer to the given context

Specified by:

initialize in interface VaadinContextStartupInitializer

Parameters:

classSet - the Set of application classes which this initializer needs to do its job

context - the VaadinContext to use with this initializer

Throws:

VaadinInitializerException - if an error has occurred

verifyServletVersion

public static void verifyServletVersion()
                                 throws javax.servlet.ServletException

Verify that the used servlet version is not too old.

Throws:

javax.servlet.ServletException - thrown if the servlet version is not compatible